From d726efb948a505ffb17ad4b030649d7904b6e334 Mon Sep 17 00:00:00 2001
From: Evan Debenham <Evan@ShatteredPixel.com>
Date: Sat, 14 Dec 2019 12:17:48 -0500
Subject: [PATCH] v0.8.0: fixed rare crash errors with spinners and blast wave
 effects

---
 .../shatteredpixeldungeon/actors/mobs/Spinner.java         | 7 ++++++-
 .../shatteredpixeldungeon/items/wands/WandOfBlastWave.java | 2 ++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/Spinner.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/Spinner.java
index f2de46b5c..9c6419853 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/Spinner.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/Spinner.java
@@ -158,7 +158,12 @@ public class Spinner extends Mob {
 				break;
 			}
 		}
-		
+
+		//in case target is at the edge of the map and there are no more cells in the path
+		if (b.path.size() <= collisionIndex){
+			return -1;
+		}
+
 		int webPos = b.path.get( collisionIndex+1 );
 		
 		if (Dungeon.level.passable[webPos]){
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/wands/WandOfBlastWave.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/wands/WandOfBlastWave.java
index 039f60890..85f2aee05 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/wands/WandOfBlastWave.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/wands/WandOfBlastWave.java
@@ -135,6 +135,8 @@ public class WandOfBlastWave extends DamageWand {
 			collided = true;
 		}
 
+		if (dist < 0) return;
+
 		final int newPos = trajectory.path.get(dist);
 
 		if (newPos == ch.pos) return;